package cn.itcast.bos.service.base.impl;

import java.util.List;

import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.Root;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.jpa.domain.Specification;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import cn.itcast.bos.dao.base.CourierRepository;
import cn.itcast.bos.domain.base.Courier;
import cn.itcast.bos.service.base.CourierService;

@Service
@Transactional
public class CourierServiceImpl implements CourierService {
	@Autowired
	private CourierRepository courierRepository;
	@Override
	public void couriersave(Courier courier) {
		courierRepository.save(courier);
	}
	@Override
	public Page<Courier> findPageData(Specification<Courier> specification,Pageable pageable) {
		
		return courierRepository.findAll(specification,pageable);
	}
	@Override
	
	public void updatecourier(String idstr) {
		String[] ids = idstr.split(",");
		for (String id : ids) {
			Integer i = Integer.parseInt(id);
			courierRepository.updatedeltag(i);
			
		}
		
	}
	@Override
	public void updatecourierHY(String idstr) {
		String[] ids = idstr.split(",");
		for (String id : ids) {
			Integer i = Integer.parseInt(id);
			courierRepository.updatedeltagHY(i);
			
		}
		
	}
	
	
	@Override
	public List<Courier> findNoAssociation() {
		// 封装Specification
		Specification<Courier> specification = new Specification<Courier>() {
			@Override
			public Predicate toPredicate(Root<Courier> root,
					CriteriaQuery<?> query, CriteriaBuilder cb) {
				// 查询条件，判定列表size为空
				Predicate p = cb.isEmpty(root.get("fixedAreas").as(java.util.Set.class));
				return p;
			}
		};
		return courierRepository.findAll(specification);
	}

}
